static void info_resp_handler(int err, const struct sip_msg *msg, void *arg, void *user_data)
{
struct sipsess_request *req = arg;
if (err || sip_request_loops(&req->ls, msg->scode))
goto out;
if (msg->scode < 200) {
return;
}
else if (msg->scode < 300) {
;
}
else {
if (req->sess->terminated)
goto out;
switch (msg->scode) {
case 401:
case 407:
err = sip_auth_authenticate(req->sess->auth, msg);
if (err) {
err = (err == EAUTH) ? 0 : err;
break;
}
err = info_request(req);
if (err)
break;
return;
case 408:
case 481:
sipsess_terminate(req->sess, 0, msg);
break;
}
}
out:
if (!req->sess->terminated) {
if (err == ETIMEDOUT)
sipsess_terminate(req->sess, err, NULL);
else
req->resph(err, msg, req->arg, NULL);
}
mem_deref(req);
}
static void bye_handler(struct sipsess_sock *sock, const struct sip_msg *msg)
{
struct sip *sip = sock->sip;
struct sipsess *sess;
sess = sipsess_find(sock, msg);
if (!sess) {
(void)sip_reply(sip, msg, 481, "Call Does Not Exist");
return;
}
if (!sip_dialog_rseq_valid(sess->dlg, msg)) {
(void)sip_reply(sip, msg, 500, "Server Internal Error");
return;
}
(void)sip_treplyf(NULL, NULL, sip, msg, false, 200, "OK",
"%s"
"Content-Length: 0\r\n"
"\r\n",
sess->close_hdrs);
sess->peerterm = true;
if (sess->terminated)
return;
if (sess->st) {
(void)sip_treply(&sess->st, sess->sip, sess->msg,
487, "Request Terminated");
}
sipsess_terminate(sess, ECONNRESET, NULL);
}
static void bye_handler(struct sipsess_sock *sock, const struct sip_msg *msg)
{
struct sip *sip = sock->sip;
struct sipsess *sess;
sess = sipsess_find(sock, msg);
if (!sess) {
(void)sip_reply(sip, msg, 481, "Call Does Not Exist");
return;
}
if (!sip_dialog_rseq_valid(sess->dlg, msg)) {
(void)sip_reply(sip, msg, 500, "Server Internal Error");
return;
}
(void)sip_treply(NULL, sip, msg, 200, "OK");
sess->peerterm = true;
if (sess->terminated)
return;
if (sess->st) {
(void)sip_treply(&sess->st, sess->sip, sess->msg,
487, "Request Terminated");
}
sipsess_terminate(sess, E_SIP_SESSION_CLOSED_BYE, NULL);
}
static void cancel_handler(void *arg)
{
struct sipsess *sess = arg;
(void)sip_treply(&sess->st, sess->sip, sess->msg,
487, "Request Terminated");
sess->peerterm = true;
if (sess->terminated)
return;
sipsess_terminate(sess, ECONNRESET, NULL);
}
static void tmr_handler(void *arg)
{
struct sipsess_reply *reply = arg;
struct sipsess *sess = reply->sess;
mem_deref(reply);
/* wait for all pending ACKs */
if (sess->replyl.head)
return;
/* we want to send bye */
sess->established = true;
if (!sess->terminated)
sipsess_terminate(sess, ETIMEDOUT, NULL);
else
mem_deref(sess);
}
static void ack_handler(struct sipsess_sock *sock, const struct sip_msg *msg)
{
struct sipsess *sess;
bool awaiting_answer;
int err = 0;
sess = sipsess_find(sock, msg);
if (!sess)
return;
if (sipsess_reply_ack(sess, msg, &awaiting_answer))
return;
if (sess->terminated) {
if (!sess->replyl.head) {
sess->established = true;
mem_deref(sess);
}
return;
}
if (awaiting_answer) {
sess->awaiting_answer = false;
err = sess->answerh(msg, sess->arg);
}
if (sess->modify_pending && !sess->replyl.head)
(void)sipsess_reinvite(sess, true);
if (sess->established)
return;
sess->msg = mem_deref((void *)sess->msg);
sess->established = true;
if (err)
sipsess_terminate(sess, err, NULL);
else
sess->estabh(msg, sess->arg);
}
static void bye_handler(struct sipsess_sock *sock, const struct sip_msg *msg)
{
struct sip *sip = sock->sip;
struct sipsess *sess;
// char tmp[256];
sess = sipsess_find(sock, msg);
if (!sess) {
(void)sip_reply(sip, msg, 481, "Call Does Not Exist");
return;
}
if (!sip_dialog_rseq_valid(sess->dlg, msg)) {
(void)sip_reply(sip, msg, 500, "Server Internal Error");
return;
}
/* QXIP */
if (sess->xrtpstats && !sess->xrtpstats[0] == '\0') {
/* Inject X-RTP-Stat header */
(void)sip_treplyf(NULL, NULL, sip, msg, false,
200, "OK",
"X-RTP-Stat: %s\r\nContent-Length: 0\r\n\r\n", sess->xrtpstats);
} else {
/* Vanilla 200 OK */
(void)sip_treply(NULL, sip, msg, 200, "OK");
}
sess->peerterm = true;
if (sess->terminated)
return;
if (sess->st) {
(void)sip_treply(&sess->st, sess->sip, sess->msg,
487, "Request Terminated");
}
sipsess_terminate(sess, ECONNRESET, NULL);
}
static void invite_resp_handler(int err, const struct sip_msg *msg, void *arg)
{
struct sipsess *sess = arg;
struct mbuf *desc = NULL;
if (err || sip_request_loops(&sess->ls, msg->scode))
goto out;
if (msg->scode < 200) {
sess->progrh(msg, sess->arg);
return;
}
else if (msg->scode < 300) {
sess->hdrs = mem_deref(sess->hdrs);
err = sip_dialog_create(sess->dlg, msg);
if (err)
goto out;
if (sess->sent_offer)
err = sess->answerh(msg, sess->arg);
else {
sess->modify_pending = false;
err = sess->offerh(&desc, msg, sess->arg);
}
int err2 = sipsess_ack(sess->sock, sess->dlg, msg->cseq.num,
sess->auth, sess->ctype, desc);
if (err2)
printf("sipsess - sent first ACK for call %.*s, got err %d (%s)\n", msg->callid.l, msg->callid.p, err2, strerror(err2));
err |= err2;
sess->established = true;
mem_deref(desc);
if (err || sess->terminated)
goto out;
if (sess->modify_pending)
(void)sipsess_reinvite(sess, true);
else
sess->desc = mem_deref(sess->desc);
sess->estabh(msg, sess->arg);
return;
}
else if (msg->scode < 400) {
/* Redirect to first Contact */
if (sess->terminated)
goto out;
err = sip_dialog_update(sess->dlg, msg);
if (err)
goto out;
err = invite(sess);
if (err)
goto out;
return;
}
else {
if (sess->terminated)
goto out;
switch (msg->scode) {
case 401:
case 407:
err = sip_auth_authenticate(sess->auth, msg);
if (err) {
err = (err == EAUTH) ? 0 : err;
break;
}
err = invite(sess);
if (err)
break;
return;
}
}
out:
if (!sess->terminated)
sipsess_terminate(sess, err, msg);
else
mem_deref(sess);
}
